Pipe calibration method for omnidirectional microphones
AssigneeAliph, Inc.
InventorGregory C. Burnett
Life of this patent
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Abstract
Embodiments include a method comprising forming a pipe including a first end and a second end by forming couplings between a plurality of sections of pipe. A loudspeaker is connected to the first end. The loudspeaker is a mouth simulator loudspeaker. A plurality of microphones are positioned a third distance inside an inside surface of the pipe using a receptacle positioned in the pipe a first distance from the first end and a second distance from the second end. An acoustic output is generated at the loudspeaker. One or more calibration filters are generated using outputs of the plurality of microphones produced in response to the acoustic output.
Claims73
A method comprising:
- forming a pipe including a hole in the pipe configured to receive a headset mount, a first end and a second end by forming couplings between a plurality of sections of pipe, each coupling comprises a union configured to join adjacent sections of the plurality of sections of pipe, the adjacent sections being positioned in an inside diameter of a respective union, and the adjacent sections in each union being spaced apart from each other by a gap;
- connecting a loudspeaker to the first end, wherein the loudspeaker is a mouth simulator loudspeaker;
- placing an electronic device having a plurality of microphones substantially within a receptacle of the headset mount;
- holding the electronic device securely to the receptacle using a firm foam piece substantially disposed at an end of a toggle clamp;
- positioning the headset mount in the hole in the pipe with each of the plurality of microphones substantially disposed a third distance inside an inside surface of the pipe, the receptacle being positioned in the pipe a first distance from the first end and a second distance from the second end;
- generating an acoustic output at the loudspeaker;
- and
- generating at least one calibration filter using outputs of the plurality of microphones produced in response to the acoustic output.
Dependencies are inferred from the claim text.